V40 45° Stepped-Base Single-V Press Brake Lower Die

This V40 45° press brake lower die combines a 40 mm V-opening with an acute 45° single-V groove and a stepped lower mounting structure. It is designed for sheet metal bending applications requiring an acute lower-die angle together with increased forming clearance compared with smaller V-opening dies.

The illustrated configuration features:

V-Opening: V40 / 40 mm
Die Angle: 45°
Overall Height: 80 mm
Main Body Width: 75 mm
Bottom Base Width: 60 mm
Stepped Section Height: 20 mm
Shoulder Radius: R4
V-Bottom Radius: R4
Rated Load Capacity: 100 ton/m

The 75 mm main body transitions to a 60 mm bottom mounting base, creating a stepped mounting profile rather than the narrow shank used by plug-in lower dies.

The dimensions shown represent one available configuration. WYS Machinery can manufacture different V-openings, die angles, heights, widths, groove radii, base dimensions, lengths and mounting structures according to customer requirements.

45° Groove for Acute-Angle Bending

The 45° V-groove provides substantially more angular clearance than conventional 85°, 88° or 90° lower dies.

This geometry can be used for acute-angle air bending, pre-bending and multi-stage forming, particularly when the workpiece must first be formed to an acute angle before a subsequent forming operation.

The final bend result depends on the complete tooling combination and forming conditions, including material grade, sheet thickness, punch geometry, V-opening, required radius, flange dimensions and material springback.

V40 Opening for Increased Forming Clearance

The 40 mm V-opening provides more forming clearance than smaller V-opening lower dies such as V32 while maintaining a relatively compact lower-tool profile.

This configuration can be selected when the bending process requires a wider die opening, greater workpiece clearance or a larger resulting bend radius.

The appropriate V-opening should always be determined according to the actual workpiece and bending process rather than V-opening alone.

Stepped-Base Mounting Structure

A key structural feature of this lower die is its stepped-base profile.

The illustrated dimensions are:

Main Body Width: 75 mm
Bottom Base Width: 60 mm
Step Height: 20 mm

This construction is different from a conventional plug-in lower die, where a relatively narrow shank is inserted into the lower-die holder.

The stepped-base configuration provides a wider supporting and mounting geometry. The base width, step height, body width and complete mounting cross-section can be modified to match the customer's press brake or existing lower-tool holder.

R4 Shoulder and V-Bottom Radii

The illustrated V40 profile uses:

Shoulder Radius: R4
V-Bottom Radius: R4

These radii are part of the working groove geometry and can also be customized according to the required V-opening, sheet thickness, material and forming conditions.

Key Features

• V40 / 40 mm V-opening
• 45° acute-angle single-V groove
• 80 mm overall height
• 75 mm main body width
• 60 mm bottom base width
• 20 mm stepped section
• R4 shoulder radius
• R4 V-bottom radius
• 100 ton/m rated load capacity
• Stepped-base mounting structure
• Different from plug-in lower dies
• Suitable for acute-angle bending and pre-bending
• Custom V-opening and die angle
• Custom height and body width
• Custom groove radii
• Custom base and mounting geometry
• Custom tool length and segmentation

Technical Specifications

Typical Applications

This V40 45° stepped-base lower die can be used for:

• Acute-angle sheet metal bending
• Pre-bending
• Multi-stage forming
• Precision flange bending
• Forming processes requiring additional angular clearance
• Stainless steel bending
• Mild steel bending
• Sheet metal enclosures and cabinets
• Industrial machinery components
• Custom sheet metal profiles
• Applications requiring stepped-base lower tooling

Tool selection should be based on the material grade, sheet thickness, required bend angle, desired inside radius, flange dimensions and required bending force.

Standard & Custom Options

The V40 45° lower die shown on this page represents one available configuration only.

WYS Machinery can customize the V-opening, die angle, overall height, body width, bottom base width, step height, shoulder radius, V-bottom radius, edge geometry, tool length, segmentation and mounting interface.

Different lower-die structures are also available, including plug-in single-V dies, wide-base single-V dies, stepped-base dies, T-type single-V dies, double-V dies, multi-V dies and other customized lower-tool profiles.

Compatible Press Brake Tooling Systems

WYS Machinery can manufacture lower dies for different press brake tooling standards and machine configurations, including:

TRUMPF Type, WILA Type, LVD Type, Bystronic Type, Amada / Promecam Type, European Type and other customized press brake tooling systems.

The stepped-base structure shown here is only one available configuration. The complete mounting profile can be adapted according to the customer's lower-die holder or press brake.

Customers can provide their machine model, existing tooling drawing, tooling cross-section, die-holder dimensions, tooling sample or workpiece drawing for evaluation.

Custom V-Opening, Angle and Groove Geometry

The V40 opening, 45° angle and R4 groove geometry are not fixed limitations.

Different V-openings, angles and radii can be manufactured according to the material, sheet thickness, required bend angle, inside radius, flange geometry, springback and forming process.

This allows customers to select a lower die according to the actual bending requirement rather than being limited to a standard catalog dimension.

Custom Mounting Structure

WYS Machinery can manufacture single-V lower dies with different mounting configurations, including:

Plug-in Structure
Wide-Base Structure
Stepped-Base Structure
T-Type Structure
Customized Mounting Structures

For this V40 model, the illustrated 75 mm body + 60 mm base + 20 mm step is one example. These dimensions can be modified according to the customer's machine and die holder.

Custom Press Brake Tooling Design Service

Customers can provide their workpiece drawing, material grade, sheet thickness, required bend angle, desired radius, press brake model and existing tooling information.

WYS Machinery can evaluate the bending requirement and manufacture a suitable tooling configuration with the required V-opening, angle, height, width, groove radii, length and mounting structure.

Why Choose WYS Machinery

WYS Machinery manufactures standard and customized press brake punches, lower dies and sheet metal bending tooling for different forming requirements.

Available lower-tooling solutions include plug-in, wide-base, stepped-base and T-type single-V dies, as well as double-V dies, multi-V dies and special customized lower-tool profiles.

The tooling displayed on our website represents available product structures and manufacturing capabilities. Final dimensions, groove geometry and mounting arrangements can be customized according to the customer's actual application.